US2239904A

US2239904A - Tumbling machine

Info

Publication number: US2239904A
Application number: US325619A
Authority: US
Inventors: Soderberg Karl Gustaf
Original assignee: Udylite Corp
Current assignee: Udylite Corp
Priority date: 1940-03-23
Filing date: 1940-03-23
Publication date: 1941-04-29
Anticipated expiration: 1958-04-29

Description

` April 29, 1941.

K. G. SODERBERG TUMBLING MACHINE Filed March 23, 1940 2 Sheets-A-Sheet l mur/Z BY v K. G. soDERan-:RG

\ TUMBLING ncl-HNE mea umn 25, 1940 April 29, 1941./

2 sheets-snaai 2 Patented Apr. 29, 1941 TUMBLING MACHINE Karl Gustaf Soderberg, Detroit, Mich., assgnor to The Udyllte Corporation, Detroit, Michl. a corporation of Delaware Application Maren 23, 1940, serial No. 325,619

. 3.0iams.

This invention relates to a tumbling machine and more particularly to a machine for tumbling,

work in bulk in a. solution for'cleaning, rinsing, pickling, phosphatizing, chromatizing, or otherwise chemically treating the work.

It is the object of this invention to produce -a machine in which work in bulk, particularly small articles or parts. can be easily and economically handled and with a minimum dragout of .the solution.

'I'his invention also contemplates a machine in whicharticles in bulk are subjected to immersion treatment with strong agitation of the liquid. Because of this strong agitation any treatment of the work is very effective and the time required to effectively treat the lwork is much less than in other machines heretofore used.

Another object of the invention is rto produce a machine which requires small 4space per unit volume of production.

These objects are achieved by a machine which in general comprises a rotating cradle and a removable basket in which the work is tumbled in the solution. The work is retained in the basket for treatment in other solutions before and/or after the tumbling.

In the drawings:

Fig. 1 is a vertical longitudinal section through the machine along the line l-l of Fig. 2, showing one ofthe baskets being' removed from th cradle. l

Fig. 2 is a plan view of the machine.

Fig. 3 is an elevational view along the' line 3 3 of Fig. 2.

Fig. 4 is a sectional view along rthe line 4 8 of Fig. 2.

Fig. 5 is a. section along the line 5--5 of Fig, 4.

Figs. 6 and 7 showdetails of the means for locking the cover on the basket and locking the basket in the cradle. e

circular or polygonal in contour. -bottom frame members are connected by a pluiron. The ring members preferably have a peripheral contoursuch as circular or polygonal, corresponding to the peripheral contour of the basket 1 The lower ring lll is welded or otherwise fixed to-the bottom frame member 9 and the upper ring member Il is welded at one end to the upright frame member 8 and at the other end to a plate.l2 welded or otherwise xed upon an iron pipe support member I3, the lower end of which is welded or otherwise secured to the frame member 9 at its mid-section.

The basket 1 consists of -top and bottom frame members I4 and I5, respectively, which are either The top and rality of upright rods I welded or otherwise secured to the members i4 and i5. Frame member I5 serves primarily as a. handle for dumping the basket when removed from the cradle. Mounted within the rods IB and spaced above the bottom frame member I5 isanother circular ring member I1. The wall I8 of the basket l is foraminated and can consist of any suitable material such as a wire mesh of Monel or other metal or metallic alloy. The wire mesh i8 extends across the ring Il so that it serves not only as the bottom but also as the side walls of the basket l. The wire mesh i8 can be welded or otherwise secured to the framework it. It, ll of the basket.

Referring more particularly'to the drawings, the machine comprises a tank i for the solution A l and a cradle 2 mounted upon longitudinal aligned

shafts

3 and 4 which are iournalled in bearing supports 5 ilxed to the end walls of the tank. The cradle 2 herein shown is a double cradle for carrying two baskets 1. It is, of course, understood that the cradle will work equally as well The basket is provided with a bail la pivotally secured to diametrically opposed rods it.

The basket is provided with a cover consisting of a ring member 253 bridged by cross members 2l and 23 and covered with wire mesh 22 of the same type as the side and bottom walls oi the basket. A handle 2t is mounted on cross member 23. The ends oi cross member 23 extend beyond the periphery of ring 2i) and are bifurcated as at 25, Fig. 2, to receive at each end a bolt member 2B provided with a wing nut 2l for locking the cover on to the basket and for locking the basket in the cradle. Each bolt 2B is supported on pin 28 carried by the bracket 29 welded on the upper'ring member il. The lower end '80 of the bolt 26 is made with a rectangular cross section which serves as a stop to limit the pivoting of the bolt 26 through a small arc. The lower corners 8| of the bolt abut the bottom of the bracket 29 as the bolt is swung to the right or to the left to positively limit the pivoting of the bolt and thus preventing the same from swinging downwardly intov the solution or into a position where lt will interfere with the placing of the lfiaskets'into the cradle or their removal thererom.

The cradle is rotated about shafts3 and 4 by a drive consisting of an electric motor 30, driving pulley 3| xed on shaft 32 Journalied in bearing 33 mounted in the end wall of the tank, and' a. gear 34 fixed on the other end of shaft 32 which meshes with large gear 35 fixed on shaft 4. An idling pulley 36 is mounted on the end of shaft 32. A V pulley 31 is connected to the motor pulley 38 by a V belt 39. The V pulley 31 is ixed4 on shaft 40. Pulley 4| is also fixed on shaft 40 rotatably supported in bearings 42. A driving belt. 43 optionally connects pulley 3| or 3S with pulley 4|. When the bolt is shifted on to idler pulley 36, the cradle quite frequently` fails to stop withthe top of the baskets uppermost. Upon such occasions the driving pulley 3| is useful for turning the cradle to the proper position with the top of the -baskets uppermost for removal of the baskets. A shifting lever v44, pivotedl as at 45, `can be swung to the left, Fig. 1, to shift the belt 43 on to pulley 3| and thus through the train of gears outlined above, rotate the cradle 2 and baskets 1 which tumbles the work in the solution.

Where the machine is used for alkaline cleaning of metal parts in a hot solution of an alkaline cleaner, the tank, cradle and baskets can be made from steel. If the work is to be tumbled in an acid pickling solution, then the basket,

cradle, tank, and other parts which come in contact with the'acid solution will be either rubber coated or made from an acid resisting material. The material from which the machine is made depends on the immersion process for whichl it is used. Other 'suitable materials will be used when the machine is used for other processes.

In operation the baskets 1 are locked in the cradle by the locking mechanism 26. 21 and the baskets thus rotated about a horizontal axis on

shafts

3 and 4. The baskets are covered during the tumbling and the same means that are used for fastening thecover on the basket also lock the basket in the cradle. The cover 20 is provided with a plurality of V members 50 positioned in spaced relation about vevery forty-uve degrees about the periphery of the cover. These V members 50 reinforce the top I4 of the basket and retains its shape during the tumbling. The

as the U shaped frame is rotated.

V members 50 guide the cover into proper closing position as one tightens down on the nuts 21. When the work has been thoroughly tumbled in the solution, the. lock

members

26, 21 are released and the basket 1 easily lifted out of the cradle by bail I9.`

I claim:

1. A machinefor tumbling articles in the presence of a liquid comprising in combination a tank adapted to hold a liquid chemical, a U shaped frame rotatably mounted .within said tank for rotation about a lsubstantially horizontal axis, a plurality of ring members mounted in spaced relation one above the other on said U shaped frame, a foraminated basket adapted to be received within said ring members, a removable cover for said basket, and a swingable fastening means for securing the cover on the basket and for seeming the basket within the ring members whereby the work within the basket is tumbled 2. A machine for tumbling articles in the presence of a liquid. comprising in combination a tank, a U shaped frame rotatably mounted within said tank and adapted to constitute a cradle, a foraminated basket comprising top and bottom frame members,a plurality of upright rods connecting said frame members, a cover, a ibase and foraminated walls, rings fitted in said U shaped frame constituting a container for said basket, and fastening means to hold said basket in place and power means to rotate said cradle and basket in said tank.

3. A machine for tumbling articles in the presence of a liquid comprising in combination a tank for holding a liquid chemical, a cradle comprlsing a U frame anda plurality of rings mounted in spaced relation one above the other on the U frame and cooperating with said frame to support the below-mentioned basket, a pair of shafts rotatably supporting the AU frame at each end, a perforate basket for receiving the work adapted to removably fit in said rings, a removable cover for said basket. and pivoted locking means for locking the basket in the cradle whereby upon rotation of the cradle the work is tumbled in said basket.

KARL GUSTAF SODERBERG.